Question

NEED DONE ASAP!!

Answer 1

Answer:

A. 3x^2 + 4 = 52

     3x^2 = 52 - 4

     3x^2 = 48

       x^2 = 48/3

       x^2 = 16

        x    = $\sqrt{16}$

        x = 4

B. x^2 - 121 = 0

     x^2  = 121

       x = $\sqrt{121}$

       x = 11

C. (b + 4 )2 = 49

    2b + 8 = 49

    2b  = 49 - 8

     2b = 41

        b = 41/2